I specifically miss my first pair of 'high' heels my mom let me have in 1982, when I was eleven. They were ankle-wrap wedges, with a closed toe, by Candies. The leather was a pretty clear claret-red, in an Oxford sort of pattern, and the wedge part looked like cork, but was stronger. The ankle straps were delicate, and sexy and a perfect balance to the shoe. My mom hemmed and hawed, and I begged, and my grandma spoke up in my favor, so my mom let me get them.

I thought I was such a grown-up girl with that two-inch heel! I wore those shoes until they fell apart.

In general, I miss the ribbon barrettes of the Xanadu period, I miss the feathered 'roach clips' that girls wore in their hair in the late 1970's, I miss the 80's-does-40's strong shoulders and fitted straight skirts. I also miss the safari-inspired trend that came out of the Indiana Jones movies.
I miss bras and underwear that fits really well. I don't know what happened to the size and shape but they are much more difficult to find now. I guess its just the mass production that took the shape out of them or the good material. If I find a bra that fits well now I buy it in several different colours!

I also miss having standard sizes. The sizing in the UK has been altered twice in the last twenty years. I used to take a standard size 12 but even if you can find a standard size now (they range in size even if they have the same number) but now a size 12 absolutely buries me. The jeans all have extra long legs that have to be taken up and the waists are bigger relatively for the size. It's a nightmare unless you try everything on before you buy. When I go over to the UK I try everything on just to make sure it fits.

Not a fashion trend sorry, but something I do miss!
I not so much miss what I was wearing in the 80's as much as how I felt wearing it. As a teen, everything felt new and cool. I miss my asymmetrical bob. Or my faux-bob, when I had shaved the entire bottom half of my head, letting the top fall back as a bob or tying it in a punk pony tail.
I miss the boxy, oversized cotton blazers from the 80's. I also miss the big, bold, earrings of the 80's. I wore huge triangle shaped enamel post earrings with three stripes of black, red, and white. I'm a packrat, so I still have them. I would have said that I really miss leggings, but they are back, so Yay!
I haven't experienced that many styles I could miss yet, but I do miss flares. I wore them as a teen and when the skinny jeans made a comeback I changed mostly to moderate bootcuts and straight legs. I never got into the skinnies. I might buy some flares again when I find a pair. I think they work well with my boho side.
I miss Helmut Lang, the real one. At least Jil Sander is finally back at her own label.
Your comment, Una, really struck a chord with me. I feel that practically everything is available. But I also realized that I am just not that trendy ( after I read Anna's post about the Spice Girl shoes ). I love to see things on people but I don't necessarily miss wearing them.

I am also at an age that I feel pretty good wearing whatever I like and I see trends as a "guide" and not a "must". If that makes any sense.
Hm... I dunno, I don't feel like I "miss" anything. Like you, I feel like it's mostly out there, and I wear it if I like it.

I would, however, like to someday see some kind of mandate for men to wear long duster coats all the time.
I miss shoulder pads too--not the huge ones, and not the ones in T-shirts, but shoulder pads gave me more room in the top.

I miss surplice topped dresses. I rarely find a wrap dress that works for me, but the sewed down wrap with shoulder pads did work.

Long ago shoe sizes came in alternate sizes with narrower heels. It would be nice to have those back. But that was a long time ago.
OMG!! Ribbon barettes! Ok. That is a blast from the past.

I do miss my olive gauchos, now that you all mention in it. I had a really cute red cotton twill gaucho shit when I was little. I'd kill for that back and in my current size. I'd be way cool in that, lol.
I miss all of my nylon Prada bags. In the 90s Prada was more affordable. I miss my nylon Prada backpack.

I also would love to see more mid-heels come back. I hate the ultra-flat sandals with minimal straps, my feel feel so exposed and vulnerable in them.And I also detest the fact that most stylish heels are 4" and up. For a few years platforms have been in but now that's going away and we're stuck with 4" heels with no solid sole so it feels like walking on concrete on your tippy toes all day.
denise, i think i will be wearing platforms for the foreseeable future. they are way too comfy to give up. i don't care if i look like a holdover from a WAGs convention. i even have the fur vest. i'll take care not to wear the two together.
I have such a bad memory, I can't remember what I loved that isn't available anymore. Maybe that's a good thing!